Is again an adverb or adjective?

Answer 1

None of the above. The word 'again' is an adverb a word used to modify a verb, an adjective, or another adverb as something occurring or doing something that has occurred or been done previously.

Examples:

Your mother called again. (modifies the verb 'called')

The bills are paid and we're again broke until payday. (modifies the adjective 'poor')

Our relationship is once again over. (modifies the adverb 'over')

Answer 2

No, the word 'again' is an adverb, a word that modifies a verb, an adjective, or another adverb.

Examples:
I hit that mailbox again. (hit again, modifies the verb 'hit')
I sat and admired the again orderly room. (modifies the adjective 'orderly')
We are again out of money. (modifies the adverb 'out')

A noun is a word for a person, a place, or a thing.

The nouns in the above example sentences are mailbox, room, money; all are words for things.

Answer 3

It is an adverb.